Island



(No Model.)

H. E. HUGHES.

SPINDLE.

PatentedNov. 10, 1896.-

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UNITED STATES PATENT OFFICE.

HENRY E. HUGHES, OF PAWTUCKET, RHODE ISLAND, ASSIGNOR OF ONE- I'IALF TO THOMAS J. RISK, OF CENTRAL FALLS, RHODE ISLAND.

SPINDLE.

SPECIFICATION formingpart of Letters Patent No. 570,996, dated November 10, 1896.

Application filed June 2'7, 1896.

Serial No- 59'7,265. (No model.)

To all whom it may concern.-

Be it known that I, HENRY E. HUGHES, a citizen of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island, have invented'certain new and useful Improvements in Spindles; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specifica: tion.

My invention relates to improvements in spindles for ootton-spinning and the like in which the spindle is supported by and runs upon double ball-bearings, one set being located above and the other below the whirl, the upper set being furnished with a compensating-cone to take up the wear upon the bearings, the center of gravity of the entire spindle when loaded being situated at or just below the whirl.

The object of my invention is to provide a spindle which can be operated with the slight est possible amount of friction and which fromthe manner of mounting admits of a certain degree of play for the purpose of yielding to any change or varia f m i f of the thread or yarn. I complish this 1 {l y the Spindle fiifi in the accompany; ing drawings, in w nl Flgure is view of the exterior of the 5191116116; 2a vertical section of the same through fi efnter thereof; Fig. 3, a view of a Portion of the spindle, showing the whirl and h i; located therein; and Fig. 4, a sectlon Tough w a: of Fig. 3.

The e parts of my invention are referred to y the same letters throughout the several drajmn In s A is the shank of the spindle; B, hollow jylindrical case reduced in size below, as se at C 1S hanged cap fitting the case B in such as to slide easily within the same.

A P the case B is cut away, as shown at iirough which opening the whirl a may be seen- This is cut away for the purpose of ac- 'hodating the band which drives the spin 'dle. The lower portion of A is enlarged below the whirl, as seen at (Z, the object of this being that the center of gravity of the spindle, when loaded with the bobbin may be just below the center of the whirl c.

D is coned interiorly at an angle of ninety (90) degrees, so as to form a bearing f for the lower set of balls I). The Whirl c has its upper and lower faces ground concavely, so as to form a seat for the balls I) and 1), respectively.

The cap 0 is ground interiorly, so as to form a conical bed, also at an angle of ninety (90) degrees, thus constituting the upper bearing for the upper set of balls I). The orifice for the admission of the spindle A in the cap 0, as seen at g, is considerablylarger than the diameter of the spindle itself at that point, for purposes to be mentioned hereinafter. There is also a space in D about the lower portion of the spindle d, as seen at h, also hereinafter explained.

a in Fig. 3 is a collar which serves to keep the balls I) in place where the spindle is re moved from its case B.

The relative sizes of the whirl c and the balls, both above and below, are such that the balls do not fill the space about the shank f ,the spindle, but leave considerable playroom betwesn the balls, as shown in Fig. 4.

It will .be noticed also in Fig. 2 that there is a space left between the under part of the flange of the cap 0 and the top of the case B and the same space between the lower cone f I and the lower edge of the upper cone f. The purpose of this is that the weight of the cap 0 may at all times keep the spindle in position as well as compensate for the wear of the balls or of the bearings, since the Weight of C will always bring it down in contact with the balls I).

The purpose of leaving the orifice g a little larger than the diameter of the spindle at that point and leaving considerable space about the bottom at of the spindle is this: In the spinning of yarn constant changes of tension take place, bringing heavy strains upon the yarn. This with the use of a rigid spindle would frequently result in broken yarn, so that the modern practice of spinning demands a spindle which when rapidly rotated with its load will when left to itself always maintain an upright position, and at the same time will easily and quickly yield to any unusual strain caused by increased tension upon the yarn itself. This uprightness is secured by my device by reason of the center of gravity of the spindle and bobbin being slightly below the bearings, thus causing it always to resume a perpendicular position when deflected, while the amount of play between the balls, both above and below, eliminates the element of rigidity, which would be disastrous to weak yarn under high speed.

It will be seen that my spindle has neither step nor bolster, the only points of contact with the supports being the tracks of the balls 'I) and 1) upon the cones f and f.

Where the deflection is very strong the side movement may lift the cap 0, in which case the weight of C will operate to restore the spindle to a perpendicular position.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A spindlev for yarn-spinning and other like purposes consisting of the balls Z) and b, the whirl 0 having its upper and lower faces ground to form seats for the said balls, the shaft A upon which said whirl is fixed, said shaft having the enlargement d upon the lower extremity thereof so that its center of gravity will be below the whirl, in combination with th cease B and the cap 0 respectively ground interiorly so as to form conical bearings for the balls I) and b, substantially as described for the purpose specified.

2. In a ball-bearing spindle of the type specified the interiorly-coned case B, the compensatin g-cap C also coned interiorly at f, said cap C sliding easily in the case B, and adapted by its weight to restore the shaft of the spindle to a perpendicular position when the same has been deflected therefrom, in combination with the shaft A and the balls I) Z), all substantially as set forth.

3. A spindle for the spinning of yarn and other similar uses consisting of the shaft A having an enlarged extremity d of such a weight as to bring the center of gravity of the shaft below the line of support, the whirl 0 fixed upon said shaft, an upper and lower set of balls in contact with the upper and lower faces of said whirl, the slotted and interiorlyconed base B bored out to accommodate the lower end of said shaft; the whole in combination with a compensating-cap O coned interiorly and adapted by its weight to restore said shaft to a perpendicular position when the same has been deflected, all as described for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY E. HUGHES. Witnesses ARNUN T. BABBER, RosE E. DORRIN-GTON. 

